70281-18-4

Basic information

• Product Name: 4,4'-dimethyl-2,2'-bipyridine-bis(2,2'-bipyridine)ruthenium(II)
• CAS NO: 70281-18-4
• Molecular Weight: 597.685
• Mol File: 70281-18-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4,4'-dimethyl-2,2'-bipyridine-bis(2,2'-bipyridine)ruthenium(II)(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-dimethyl-2,2'-bipyridine-bis(2,2'-bipyridine)ruthenium(II)(70281-18-4)
• EPA Substance Registry System: 4,4'-dimethyl-2,2'-bipyridine-bis(2,2'-bipyridine)ruthenium(II)(70281-18-4)

Safety Data

• Hazardous Substances Data: 70281-18-4(Hazardous Substances Data)

Upstream product

• 99666-80-5 [ruthenium(III)-bis(2,2'-bipyridine)-(4,4'-dimethyl-2,2'-bipyridine)]⁽³⁺⁾ 
• 26985-31-9 methyl viologen cation radical 

Relevant articles and documents

Intramolecular Electron Transfer from Mn or Ligand Phenolate to Photochemically Generated RuIII in Multinuclear Ru/Mn Complexes. Laser Flash Photolysis and EPR Studies on Photosystem II Models

In a mononuclear MnIV and a trinuclear MnII complex, the ligands of which contain electron-rich phenols (coordinated to the Mn('s)) and covalently attached ruthenium(II) 2,2′-trisbipyridyl(=bpy)-type groups, intramolecular electron transfer (ET) from the phenolate ligand (in the mononuclear MnIV complex) or from a MnII (in the trinuclear MnII complex) to the photochemically (λexc= 455 nm) generated RuIII takes place with k ≥ 5 × 107 s-1, giving rise to the corresponding phenoxyl radical (complexed to MnIV) or to MnIII, respectively. Thus, in the trinuclear MnII complex, the source of the electron that reduces the photogenerated RuIII(bpy?-) moiety is a MnII, in contrast to the situation with the mononuclear MnIV complex, where the electron stems from a phenolate. The half-life of the coordinated phenoxyl-type Ru(bpy)/Mn complex (as produced in the presence of [CoIII(NH3)5Cl]2+) is of the order 0.5-1 ms. The Ru(bpy) compound containing three (phenolate-ligated) MnII atoms is the first example of a photochemically induced intramolecular ET from a multinuclear Mn cluster to an attached sensitizer , and the Ru complex containing one (phenolate-ligated) MnIV is the first case of an ET from a synthetic MnIV-coordinated phenolate to a photochemically produced oxidant (RuIII).